And he received the sign of circumcision, a seal of the justice of the faith, which he had, being uncircumcised; that he might be the father of all them that believe, being uncircumcised, that unto them also it may be reputed to justice:

Therefore is it of faith, that according to grace the promise might be firm to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham, who is the father of us all,